Modular collapsible chair



FIG. 1 is a perspective view of the design for a modular collapsible chair embodying my invention;

FIG. 2 is a top plan view;

FIG. 3 is a is a right side elevational view thereof;

FIG. 4 is a left side elevational thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front elevational view thereof; and,

FIG. 7 is a rear elevational view thereof. 

The ornamental design for a modular collapsible chair, as shown and described. 